Omega · Constellation
Strap for Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Steel / Yellow Gold / Diamond / MOP
Takes 17 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Constellation 127.25.27.20.55.002, seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 127.25.27.20.55.002?
The lug width is 17 millimetres. This measurement is the clear space between the two case terminals through which the strap passes. Verify it with a digital calliper positioned perpendicular to the metal lugs of the strap terminals, excluding the case dome.
Which strap do you recommend for this Constellation?
An alligator in coffee or tobacco brown tones amplifies the sophistication of the mother-of-pearl dial. Alternatively, vegetable-tanned calf leather ages magnificently over time. We advise against budget materials: a handcrafted strap should not exceed 15-20% of the watch's value.
How do I change the strap on the Omega Constellation 127.25.27.20.55.002?
The strap attaches to the lug terminals via small metal pins. To remove it, use a spring bar remover tool to compress the small internal spring of the pin and slide it out laterally. Repeat the opposite procedure to mount the new strap. If you are unsure, consult a watchmaker.
Are compatible straps available online?
Yes, on milanostraps.it you will find a complete collection of 17mm straps ready for shipment, in alligator, calf, shell cordovan and other materials. They are customisable in length, initials and stitching thread. For bespoke custom tailoring, contact the Casati Milano atelier by appointment.
How long does a leather strap last on a daily-worn watch?
A high-quality handcrafted leather strap lasts 24-36 months with proper maintenance (periodic cleaning with a damp cloth, protection from rain and sweat). This depends on the tanning method (vegetable-tanned lasts longer than synthetic), seasonal use and personal habits. Casati Milano offers an 18-month warranty on all straps.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
